Home / 839,905.40-1,259,858.10-825,908.60

Finding the Fourth Proportional to 839,905.40, 1,259,858.10 and 825,908.60

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Solution

The fourth proportional to 839,905.40, 1,259,858.10 and 825,908.60 is: 1,238,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,905.40 : 1,259,858.10 = 825,908.60 : x
  2. Step 2: Convert to fraction form
    839,905.40/1,259,858.10 = 825,908.60/x
  3. Step 3: Cross multiply
    839,905.40x = 1,259,858.10 × 825,908.60
  4. Step 4: Simplify right side
    839,905.40x = 1,040,527,639,569.66
  5. Step 5: Solve for x
    x = 1,040,527,639,569.66/839,905.40
  6. Step 6: Final answer
    x = 1,238,862.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.